Pipelines can quickly pit shafts

Discussion in 'Electrical/Telco/Grounding' started by Wireless Estimator, Feb 1, 2008.

  1. Wireless Estimator

    Wireless Estimator Administrator Staff Member

    Many buried structures such as pipelines are protected against corrosion by means of impressed current cathodic protection systems which use an external current source. If your guyed tower anchor is near any one of these lines, it could be exposed to stray current corrosion since it provides the path of least resistance for current flow through the electrolyte. The current is picked up on one anchor and travels by means of the guy cables to the alternate anchor where it is discharged, causing rapid deterioration to the anchor shaft at that location. This can be alleviated by electrically bonding the tower to the structure generating the stray current, making it part of the protected system.

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